timing lite degrees?

[zukinattor]

12 degrees is the oem spec for 1mm on the dial indicator? thnks

[Northern RD]

well I've used it and my friends have used it ..I have a twin turbo cummins pickup myself..I guess I don't count ....either way you have to static time any thing you put together ie cummins , tdi, vw idi , perkins,  detroit etc  and the fine tuning is what the dial indicator, or spill port, or timing light is for....
thanks
Deo
\x/ Hillfolk!

Nonetheless I believe what he`s implying above is that you can use the inductive setup to establish the correct IP timing irregaurdless of how far out of wack it is and that`s not the route I`d take. Piezo sensors have thier limitations as well,..... :wink:  :wink:

[therabbittree]

that is not waht i was impliming..the injection pump can only be moved soo much in its adjusting slots so if you are out on your static timing..your screwed and have to reset th et belt..this whole thread was just about using a timing light to time the engine..you setill needede to lock and set the t belt and pump up correctly before using the t belt...i if you locked the pump and cam and had th et belt correctly set and the pump body wa sin teh middle of it  adjustment range..then yes you could use the piazzo and timing light do turn the pump as it was running to waht ever setting that was in the range of the pump movement ..that you'd like and then tighten it down.
thanks
later
Deo
\x/ hillfolk!

[Northern RD]

that is not waht i was impliming..the injection pump can only be moved soo much in its adjusting slots so if you are out on your static timing..your screwed and have to reset th et belt..this whole thread was just about using a timing light to time the engine..you setill needede to lock and set the t belt and pump up correctly before using the t belt...i if you locked the pump and cam and had th et belt correctly set and the pump body wa sin teh middle of it  adjustment range..then yes you could use the piazzo and timing light do turn the pump as it was running to waht ever setting that was in the range of the pump movement ..that you'd like and then tighten it down.
thanks
later
Deo
\x/ hillfolk!

Granted an inductive set-up like the Snap-on MT257A Diesel pulse adaptor offers the advantage of convenience in rare stuations like the Suzi mentioned above but it`s hard to justify that conveniece when Snap-on charges $333.40 for it. This is contrasted with dial gauge kits which can be had for as little as $50 on ebay and require nothing more than a little patiance and practice to give results comparable to the pulse adaptor. You haven`t convinced me to throw out my dial gauge kit yet :wink: !
For what it`s worth, the MT257A uses a Motorola MC2585A piezo sensor(there are some that use a similar item from Ongura) which is a quartz crystal unit. The MC2585A is part of a tuned circuit oscillator know more specifically as a resonant tank circuit and this particular circuit offers a high degree of frequency stability over other similar circuits. In this application the adaptor makes use of the fact that the quartz crystal produces a very weak voltage when it is placed under mechanical stress(in this case the expansion of the injector line) to produce a signal that can be used by a conventional timing light. The tank circuits` main downfall here also happens to be its chief advantage in this application, namly it`s sensitivity. It has a tendancy in situation where there is a lot of ambiant noise, to pick up pretty much anything it "hears" as a pulse and(I may be mistaken here, someone correct me if I am)this is the reason Snap-on recommends that it not be used in common rail set-ups.
My 2 cents,
N.